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N-ETHYLPYRROLIDONE(Electronic Grade)
SYNONYMS: 1-Ethyl-2-pyrrolidone, NEP
 
STRUCTURAL FORMULA:
CAS NO.: 2687-91-4
Molecular weight :113.1g/mol
Density@25℃: 0.993 g/ml
Boiling Point: 212℃
Melting Point: -77℃
Formula:C6H11NO Viscosity@ 25℃: 3.5 mPa.s
 
SPECIFICATIONS:
Appearance Clear,colorless liquid
APHA 50 max.(Pt-Co Color)
Assay 99.6% min. (by GC)
γ-Butyrolactone 0.1%max. (by GC)
Amines 0.1% max. (by GC)
Water 0.1% max.
 
DISCRIPTIONS:
N-ethylpyrrolidone (NEP) is the lactam of 4-ethylaminobutyric acid and a very weak base. NEP is a chemically stable and powerful polar solvent. These characteristics are highly useful in a variety of chemical reactions where an inert medium is of concern. Despite the stability of NEP, it can also play an active role in certain reactions: hydrolysis, oxidation, condensation, conversion with chlorinating agents, polymerization and o-alkylation, and related reactions.
 
APPLICATIONS:
For higher end, low impurity level applications:
lithium ion batteries wafer degreasing
photoresist stripper coating developer
epoxy deflashing  
 
PACKING:
200kgs plastic drum.
 
SAFETY:
Care should be used when handling NEP. Skin contact should be avoided. Contact can result irritation; prolonged contact can result in redness and dermatitis. Butylrubber or FEPTeflon gloves are recommended when handling NEP. A good skincream should be used after washing the affected area. As with all solvents, the workplace should be well ventilated and safety goggles must be worn.
 
STORAGE & HANDLING:
NEP has an almost unlimited shelf life in sealed containers when properly stored in a protected storage area in original unopened containers or protected from moisture. It is neither explosive nor spontaneously flammable in air. However, it is combustible. When ignited, NEP will sustain a fire. All types of fire extinguishers are effective against NEP fires.
 
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